Answer:
x = -31/4 or x = 17/4
Step-by-step explanation:
|4x + 7| − 4 = 20
⇔ |4x + 7| − 4 + 4 = 20 + 4
⇔ |4x + 7| = 24
⇔ 4x + 7 = 24 or 4x + 7 = -24
⇔ 4x = 24 - 7 or 4x = -24 - 7
⇔ 4x = 17 or 4x = -31
⇔ x = 17/4 or x = -31/4
Answer:
4
Step-by-step explanation:
20: 1, 2, 4, 5, 10, 20
8: 1, 2, 4, 8
Greatest common factor is 4!
Answer:
-16
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
He uses two pages each day so they would be negative two and he had positive 150 pages, so the answer would be B.
Step-by-step explanation:
something went very wrong with the problem description.
the area of a triangle is
base × height / 2
so, we know the area, and we know the height.
therefore
470 = base × 20 / 2 = base × 10
base = 470/10 = 47 mm
